v3.25.2
Leases (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Lessee, Lease, Description [Line Items]        
Leases, Renewal Term     5 years  
Scottsdale, Arizona [Member]        
Lessee, Lease, Description [Line Items]        
Tenant improvement allowances   $ 2   $ 2
Maximum [Member]        
Lessee, Lease, Description [Line Items]        
Operating lease, remaining lease term years 10 years   10 years  
Operating lease expense $ 1 $ 1 $ 1 $ 1
Minimum [Member]        
Lessee, Lease, Description [Line Items]        
Operating lease, remaining lease term years 3 years   3 years